# Surf for More Math

## Lesson 7 - Changing the Scale on a Graph

To encourage students to have fun on the Web while learning about Changing the Scale on a Graph, here are some games and interactive activities they can do on their own or in pairs.

### Goal

Describe how changing the scale changes a line graph.

### Builds Upon

Student Book page 87

### Instructions for Use

Bar Graph lets students change the scale on a graph and interpret data displayed on the bar graph.

To use Bar Graph, choose a data set from the pull-down menu, or type in the data in the data box and click the 'Graph Data' button. By dragging the 'Bar Width' scrollbar, students may alter the thickness of the bars. By dragging the vertical scrollbar, students may adjust the scale of the graph or simply input maximum and minimum values into the text fields. Then click the 'Set Min and Max' button. To change the colour of the bars, select the bar colour from a drop-down menu. To clear all the data, click the 'Clear Data' button.